Pollution-free low temperature slurry combustion process utilizing the
super-critical state
    61.
    发明授权
    Pollution-free low temperature slurry combustion process utilizing the super-critical state 失效
    无污染的低温浆料燃烧过程利用超临界状态

    公开(公告)号:US4380960A

    公开(公告)日:1983-04-26

    申请号:US261143

    申请日:1981-05-06

    Abstract: A continuous process for the combustion of solid fuels under conditions such that flue gas is essentially free of particulates and oxides of sulfur and nitrogen. Fuel is charged as an aqueous slurry and additional water condensed from the flue gas may be recycled to the pressurized combustion zone. Combustion is promoted both by water vapor and alkali added with the fuel slurry, while the alkali serves also to neutralize and remove sulfur in completely oxidized, or sulfate, form. Heat of combustion raises the temperature of the reactants above the critical temperature of water, forming a hot fluid from which useful heat is transferred. Under the pressure of the system, heat recovery results in condensation of water, retaining and slurry product ash and providing recycle water, which helps to control reaction temperature as well as to promote the combustion.

    Abstract translation: 在使烟道气基本上不含硫和氮氧化物的条件下固体燃料燃烧的连续方法。 燃料作为含水浆料加料,并且从废气中冷凝的另外的水可以再循环到加压燃烧区。 通过添加有燃料浆料的水蒸气和碱来促进燃烧,而碱还用于中和和完全氧化或硫酸盐形式的硫。 燃烧的热量使反应物的温度升高到临界温度以上,形成热的流体,从中传递有用的热量。 在系统的压力下,热回收导致水,保留和浆料产物灰分的冷凝,并提供循环水,这有助于控制反应温度以及促进燃烧。

    Fuel producing system for solid/liquid mixtures
    62.
    发明授权
    Fuel producing system for solid/liquid mixtures 失效
    固体/液体混合物的燃料生产系统

    公开(公告)号:US4259022A

    公开(公告)日:1981-03-31

    申请号:US101858

    申请日:1979-12-10

    Applicant: Roy E. Folland

    Inventor: Roy E. Folland

    Abstract: A fuel producing system for a solid/liquid mixture. The system comprises a mixing reservoir having a first inlet for receiving a combustible liquid fuel, and a second inlet for receiving a solid fuel pulverized to a mixable state with said liquid fuel. Mixing means is provided in the mixing reservoir to mix both fuels. Quantitative control means is also provided in the reservoir to measure predetermined amounts of the liquid and solid fuels delivered therein. A holding reservoir receives the solid/liquid fuel mixture from an output conduit of the mixing reservoir. Pump means is provided in the output conduit. First control means is further provided to shut off the flow of the fuel mixture to the holding reservoir to permit the mixing of further fuel mixture in the mixing reservoir. A second control means initiates the flow of the fuel mixture to the holding tank when the mixture fluid therein is extracted to a predetermined low level.

    Abstract translation: 用于固体/液体混合物的燃料生产系统。 该系统包括具有用于接收可燃液体燃料的第一入口和用于接收与所述液体燃料粉碎至可混合状态的固体燃料的第二入口的混合容器。 在混合容器中设置混合装置以混合两种燃料。 定量控制装置还设置在储存器中以测量其中输送的液体和固体燃料的预定量。 保持容器从混合容器的输出管道接收固体/液体燃料混合物。 泵装置设置在输出管道中。 进一步提供第一控制装置以便将燃料混合物的流动截止到保持容器以允许在混合容器中混合进一步的燃料混合物。 当其中的混合流体被提取到预定的低水平时,第二控制装置启动燃料混合物到储存箱的流动。

    Coal burning method to reduce particulate and sulfur emissions
    64.
    发明授权
    Coal burning method to reduce particulate and sulfur emissions 失效
    燃煤法减少颗粒物和硫的排放

    公开(公告)号:US4232615A

    公开(公告)日:1980-11-11

    申请号:US047004

    申请日:1979-06-11

    Inventor: Melvin H. Brown

    CPC classification number: F23K1/02 F23C6/04

    Abstract: A method is disclosed for burning a pulverized carbonaceous material containing sulfur and ash. According to this method, a slurry is formed containing the carbonaceous material, water and a reagent adapted to react during combustion with the sulfur in the material. The slurry is burned in a first stage with less than 100% theoretical air and preferably at a temperature below about 1100.degree. C. The products of combustion from the first stage are removed to a second stage and burned with additional air.

    Abstract translation: 公开了一种用于燃烧含硫和灰分的粉碎碳质材料的方法。 根据该方法,形成含有碳质材料,水和适于在燃烧过程中与材料中的硫反应的试剂的浆料。 浆料在第一阶段以小于100%的理论空气燃烧,优选在低于约1100℃的温度下燃烧。来自第一阶段的燃烧产物被除去到第二阶段,并用额外的空气燃烧。

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